SR 3

SR 3 may refer to:

• SR-3 Vikhr, a Russian assault rifle
• SR-3 Blackstar, the first stage of a reported American covert spaceplane program
• Matich SR3, an Australian sports car
• Radical SR3, an English sports car
• Saints Row: The Third, a video game
• Szekely SR-3, an aircraft engine
• State Road 3 or State Route 3; see List of highways numbered 3
• The third iteration of Solar Roadways' panels, and the first to be publicly installed
• VR Class Sr3, a Finnish electric locomotive
• SR3 (album), an album by K.O